Support 2 Switching Modes: 1. Buttons switching, just need one click switch to the designated computer;2.Wired remote switch (included in the package). LED indicates the active computer. Important: After connecting the computers and the monitors through KVM, you need to set the screen output mode on the computer (press Windows+P) and select the output mode in the pop-up window on the screen. Package includes 1 x USB 3.0 HDMI dual monitor KVM switch, 1 x Power adapter, 1 x Wired Remote Switch, 4 x USB 3.0 Type-A to B cable, and 1 x User Manual. We offer a 2-year warranty, if you encounter problems when using the KVM connection, please contact us. 3 USB 3.0 and Audio Microphone Ports: This dual monitor KVM HDMI switcher with 3 USB 3.0 ports which can recognize keyboard mouse, U-disk, printer, or other USB devices. USB 3.0 has a faster data transfer speed of up to 5Gbps, backward compatible with USB 2.0/1.1 devices while USB 2.0 has a data transfer speed of 480Mbps. Come with a 3.5mm Audio Jack port with a DAC chip inside and a 3.5mm microphone interface, which can be inserted into a 3-segment 3.5mm earpiece device and microphone. USB 3.0 HDMI KVM Switch Dual Monitor 4K 60Hz: Our dual monitor HDMI KVM switch Confirms to HDMI 2.0 protocol, supports a maximum resolution of 4K@60Hz, and is compatible downwards. Also supports separate audio and microphone output. Note: Only when both your computer Graphics card and monitor support 4K@60Hz you can get the 4K@60Hz effect, so if you want the maximum resolution you have to check your devices first. With Simulation EDID: This KVM dual monitor switch can simulate the EDID of the display, and store the resolution and refresh rate of the display, it comes with EDID emulators in each input port, keeping PCs always having correct display information. Without EDID, your windows may move around when switching. No longer have to sit and wait for the windows to adjust. Another feature of EDID is the ability to automatically identify the best resolution. USB 3.0 HDMI KVM Switch 2 monitors 4 computers: This 4 IN 2 OUT HDMI dual monitor KVM Switch allows you to control 4 computers or laptops with one set of keyboard, mouse, and dual monitors to make your workspace tidy and efficient, also a premium choice for working from home. Note: This dual monitor KVM supports HDMI dual-screen display (This function requires your PC to support dual display or multi-display, then you can use this KVM to achieve 4 PCs to share 2 monitors. ).